Yep, seen the issue many times in another software version. Can't remember which one. We are currently running 8.1.131.0 and I think that one is ok.
8.0.121.0 is a gold star release if you want a release which should be very solid (be careful if you are using very new access points though - they may not be supported).
8.2.100 is bleeding edge new, so you have to expect some problems.